Since ancient times many dynasties built different parts of the Great Wall of China, but the part in Inner Mongolia has the largest length of 150 thousand kilometers. This forms 30% of the entire length of the Great Wall of China. There are convenient tour packages to go and see the Great Wall of China in the Inner Mongolia section. Because this section has existed for the longest time, it is the oldest and largest relic of the different dynasties that worked to protect the northwest borders of China.
